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December 2002, Week 1

HP3000-L@RAVEN.UTC.EDU

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Subject:
From:
Peter Smithson <[log in to unmask]>
Reply To:
Peter Smithson <[log in to unmask]>
Date:
Thu, 5 Dec 2002 08:31:46 -0600
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 On Wed, 04 Dec 2002 22:29:57 GMT, steve macsisak
<[log in to unmask]> wrote:

>Normal Fixed length record files can't really delete a record. Why
>because no reorganization would occur since there is not indexing. A RIO
>file is really a fixed length record file with a extra word that allows
>the record to be deleted, that is, the flag is set to delete...
>The record is really sill there but its flagged as deleted and you
>normally can't read it...
>
> From the manual
>
>Relative Organization Files
>
>A relative organization file is so named because the relative order of
>its records is constant.  It has MPE XL file type RIO. It differs from a
>random access file only in the following ways:
>
>    *   Its first key is one, not zero.
>
>    *   Its records can be deleted.  <****************
>


Thanks - maybe I'll e-mail HP if I get a chance and ask them why
they're giving out contradictory information.
--
http://www.wadmag.org.uk - Windsor & District MAG
http://www.nmmcc.co.uk - Non-Members MCC
http://uk.geocities.com/ukwebring - UK Motorcycle site webring

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